Power

Power has different meanings depending on the context:

Power (physics), how fast energy can be changed into work
Electric power, electricity that comes from power plants or generators
In sociology, power is the ability of a person to make another person do something. This might also be called influence or control.
Statistical power, how likely the test is to say something is true when it is really true
Exponentiation; in mathematics, "power" is multiplying a number by itself
A life force, called chi by the Chinese and kiai by the Japanese.
In politics a great power is more powerful than other countries.

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